The rugosity of the bathymetry dataset from the Queen Charlotte Sound / Tōtaranui and Tory Channel / Kura Te Au Hydrographic
Survey LINZ Project HYD-2016/17-01 (HS51).
Rugosity (or roughness) of the seafloor is the ratio of surface area to planar area, and is a measure of terrain complexity.
Calculated over 3 x 3 neighbouring cells. In the benthic environment, ecological diversity can generally be correlated with
environmental complexity. As such, rugosity is often used to help identify areas with potentially high biodiversity.
These data are in raster geotiff format and include ESRI layer files and QGIS GML files for symbology.
The National Institute of Water and Atmospheric Research Ltd (NIWA) was contracted in October 2016 by Land Information New
Zealand (LINZ) to undertake hydrographic surveying services for the Queen Charlotte Sound / Tōtaranui and Tory Channel /
Kura Te Au Hydrographic Survey (HS51). This work was commissioned by a partnership between LINZ and the Marlborough District
The commissioned survey comprises both hydrographic (LINZ) and habitat mapping (MDC), requirements which are met by a NIWA-led
partnership with Discovery Marine Limited (DML) under LINZ project HYD-2016/17-01 (HS51) Contract No 20058.
Neil H.L., Mackay K., Wilcox S., Kane T., Lamarche G., Wallen B., Orpin A., Steinmetz T., Pallentin A. 2018. What lies
beneath? Guide to Survey Results and Graphical Portfolio, Queen Charlotte Sound/Tōtaranui and Tory Channel/Kura Te Au (HS51)
Survey. NIWA Client Report 2018085WN.
Queen Charlotte Sound / Tōtaranui
and Tory Channel / Kura Te Au in the Marlborough Sounds, New Zealand